Aleksandr Efimov has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/25001 )

Change subject: IMPALA-15059: Use HBO row counts in Calcite scans
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Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/25001/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/25001/2//COMMIT_MSG@14
PS2, Line 14: input-stat helpers with HdfsScanNode. Keep catalog row counts for
> I haven't reviewed the patches on top of this one yet, so maybe the answer
I kept the catalog row count for NULL selectivity because numNulls comes from 
the same stats. You're right about NDV: PS3 uses HBO for the fallback and 
row-count cap, with regression tests.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I0f530098d34869cda5ff36a06576bb4854ad7f4f
Gerrit-Change-Number: 25001
Gerrit-PatchSet: 2
Gerrit-Owner: Aleksandr Efimov <[email protected]>
Gerrit-Reviewer: Aleksandr Efimov <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Steve Carlin <[email protected]>
Gerrit-Comment-Date: Fri, 09 Oct 2026 10:33:57 +0000
Gerrit-HasComments: Yes

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